JP7349000B1 - work vehicle - Google Patents

Abstract

[Problem] To streamline work at a cramped construction site. [Solution] A working device (1) including a boom (10), an arm (11), and a bucket (12), a loading platform (2), an upper rotating body (3), a driver's cab (4), and a lower traveling body (5) A work vehicle that has a rotating upper structure (3) and can load objects in a bucket (12) into a loading platform by operating the revolving superstructure (3). [Selection diagram] Figure 1

Description

The present invention relates to a work vehicle. Specifically, the present invention relates to a work vehicle that functions as both a construction machine and a transport vehicle.

At demolition sites, disaster recovery sites, and farmland, power shovels and backhoes scoop up dirt and waste and dump it into the loading platform of a dump truck.When the dump truck's loading platform is full, the dump truck starts and removes the sediment and waste. Transport waste. However, in mountainous areas or areas with dense buildings, there are cases where the area into which relatively large work vehicles such as dump trucks can enter is narrow. In this case, it is necessary for a small power shovel or backhoe to go back and forth to a dump truck located at a remote location, or to manually load the soil and waste removed by the power shovel or backhoe into the dump truck bed. However, there is a problem in that it places a heavy burden on workers and impairs safety.

In order to solve such problems, for example, Patent Document 1 and Patent Document 2 below propose a method of handling construction machines such as power shovels and backhoes and dump trucks at the same time.

Utility model application publication number Hei 4-15638 Japanese Patent Application Publication No. 2001-058538

Patent Document 1 describes a civil engineering device that is configured of a mini excavator, a dump truck, and hydraulic piping, and is capable of efficiently performing civil engineering work even on narrow roads. However, even with this device, it is difficult to work at particularly narrow construction sites where dump trucks cannot enter. Additionally, there is a safety issue when working with two vehicles connected via hydraulic piping.

Patent Document 2 describes a towable vessel that can be towed by a power shovel or a wheel loader to transport materials and equipment. This towed vessel is intended to transport the loaded soil and materials to their destination using dump trucks. In this case, it is still necessary to have dump trucks waiting near the construction site, and the work effort at the construction site where dump trucks cannot approach is still large.

Therefore, the present inventor sought a means to safely transport soil and waste with even less effort from construction sites where dump trucks cannot enter, such as narrow demolition sites and slopes in mountainous areas. As a result, the above-mentioned problem was solved by integrating a construction machine such as a power shovel or a backhoe and a transport vehicle such as a dump truck into a single vehicle. That is, the present invention is as follows.

(Invention 1) It has a working device (1), a loading platform (2), an upper revolving structure (3), a driver's cab (4), and a lower traveling structure (5), and the working device (1) is in direct contact with the working point. The part has a boom (10), an arm (11), and a bucket (12), and is capable of moving the loading platform (2) in one or more ways selected from lifting, sliding, and tilting, and has an upper turning mechanism. A work vehicle that can load objects in a bucket (12) onto a loading platform by operating its body (3).
(Invention 2) The work vehicle of Invention 1, wherein the bucket (12) is a shovel or a backhoe.
(Invention 3) The working vehicle according to Invention 1, wherein the lower traveling body (5) is a tire or an endless track.

By using the work vehicle of the present invention, it is possible to excavate and transport earth and sand and waste with one vehicle.

FIG. 1 is a conceptual diagram of a work vehicle of the present invention. Shows how it looks from the side. FIG. 1 is a conceptual diagram of a work vehicle of the present invention. Shows the view from above. 1 shows how the work vehicle of the present invention is used for work.

[Work vehicle]
The work vehicle of the present invention includes a work device, a loading platform, an upper rotating body, and a lower traveling body. In short, the work vehicle of the present invention is a work vehicle in which a construction machine and a liftable loading platform are installed on the upper part of one vehicle.

[Working equipment]
The working device provided in the working vehicle of the present invention is a part that directly contacts the working point. The use of "work" in the present invention is general civil engineering work, such as building land development, earth removal, dam construction, forest road construction, foundation work, field maintenance, river improvement, landscaping, agricultural work, and stone crushing. Specifically, "work" in the present invention includes trench cutting, root cutting, excavation, loading, ground leveling, and the like.

The working device of the present invention has a boom, an arm, and a bucket. The definitions of boom, arm, and bucket follow the general definitions in the construction machinery field. The above working device is a so-called front attachment. The working device includes an auxiliary part that is common in construction machinery. The working vehicle of the present invention can be used for a wide range of purposes by replacing the working device with devices of various shapes and sizes. A shovel or a backhoe is generally used as the bucket. As a drive method for the above working device, any of a hydraulic type, an electric type, and a hybrid type of hydraulic and electric types can be used.
[Cargo platform]
The loading platform provided on the work vehicle of the present invention is equivalent to the loading platform provided in a general dump truck. Earth and sand and waste are thrown into the loading platform from the working device. The loading platform can be moved and the loaded items can be unloaded all at once. Such movement is one or more selected from lifting, sliding, and tilting. For example, the front side can be raised and the load can be lowered to the rear (the movement of a rear dump truck), the entire loading platform can be slid backwards (the movement of a slide dump or loader dump truck), and it can be tilted to the left or right (the so-called side dump truck). This type of movement includes the movements associated with

[Upper revolving structure, driver's cab]
A power source such as an engine and a hydraulic pump and accessory equipment are arranged in the upper revolving body provided in the work vehicle of the present invention. The driver's cab of the work vehicle of the present invention is a part where a worker who handles the work vehicle of the present invention stays. The driver's cab also rotates according to the movement of the upper rotating structure. A worker operates the work vehicle of the present invention by handling various devices in the driver's cab. Specifically, a worker sitting in a driver's cab operates the working device and/or the loading platform.

[Lower running body]
The lower traveling body provided in the work vehicle of the present invention is a part where the work vehicle of the present invention comes into contact with the road or the ground, and is a part where the work vehicle of the present invention travels. Either tires or endless tracks can be used as the traveling means. Tracks are suitable for moving vehicles over rough terrain. The components of the tire or endless track used in the present invention are not limited as long as they are common in the fields of construction machinery and transportation/work vehicles.

[Accessories]
The work vehicle of the present invention has a mechanism for driving each of the work device, the loading platform, the upper rotating body, the driver's cab, and the lower traveling body. As the drive mechanism, electric, hydraulic, mechanical, and other systems common in the field of construction machinery and transport/work vehicles can be used without restriction.

In addition to the above-mentioned devices, the work vehicle of the present invention can have accessory devices common in the field of construction machines and transportation/work vehicles. For example, the work vehicle of the present invention can be equipped with a lighting device, a mirror, an air conditioner, various sensors, and communication equipment. The work vehicle of the present invention can be equipped with safety devices such as a head guard, a safety cab, and a safety frame.

[Example 1]
FIG. 1 schematically shows a working vehicle of the present invention viewed from the side. FIG. 2 schematically shows the working vehicle of the present invention viewed from above.

Details are omitted or exaggerated. An example (100) of the work vehicle of the present invention includes a work device (1), a loading platform (2), an upper revolving structure (3), a driver's cab (4), and an endless track (5) as an undercarriage. The working device (1) has a boom (10), an arm (11), and a backhoe (12) as a bucket. The loading platform (2) can be slid in the direction of the arrow in FIG.

[Example 2]
FIG. 3 shows how the work vehicle (100) throws the waste material (6) scooped up by the backhoe (12) into the loading platform (2). The loading platform (2) of the work vehicle (100) is in a position where it has been slid rearward by the slide mechanism (20). Waste material (6) has already been placed on the loading platform (2). After scooping up new waste material (6) with the backhoe (12), the worker in the driver's cab (4) works with the upper revolving structure (3) in the direction of the arrow until the backhoe (12) reaches the top of the loading platform (2). Rotate the device (1). When the backhoe (12) reaches above the loading platform (2), the operator operates the arm (11) to throw the waste material (6) from the backhoe (12) into the loading platform (2). The vehicle (100) can travel to the waste material collection site. At the collection site, waste materials (6) are unloaded from the loading platform (2). At this time, the waste material (6) can be unloaded from the loading platform (2) at once by using one or more of lifting, sliding, and tilting the loading platform (2). Normally, at this time, the door (wall surrounding the loading platform) of the loading platform (2) is opened.

The present invention facilitates civil engineering work in confined spaces. The work vehicle of the present invention contributes to labor saving in civil engineering and construction work. The present invention is expected to be one of the means to solve the labor shortage in civil engineering construction and agricultural work.

1 Working equipment
10 Boom 11 Arm 12 Backhoe (bucket)
2 Loading platform 20 Slide mechanism 3 Upper revolving body 4 Cab 5 Endless track (lower traveling body)
6 Waste materials 100 Work vehicles

Claims (3)

It has a working device (1), a loading platform (2), an upper rotating body (3), a driver's cab (4), and a lower traveling body (5),
The work device (1) is a part that comes into direct contact with the work point, and has a boom (10), an arm (11), and a bucket (12),
By moving the loading platform (2) in one or more methods selected from lifting, sliding, and tilting, the loading platform can unload the load at once ,
A work vehicle capable of loading objects in a bucket (12) onto a loading platform by operating an upper revolving body (3) ,
The upper revolving structure (3) is not rotated, the boom (10) extends along the front-rear direction of the work vehicle, and the arm (11) and bucket (12) are attached to the work vehicle. The empty loading platform (2) can be slid rearward from a position above the lower traveling body (5) and in contact with the rear end of the revolving body (3);
A work vehicle that integrates construction machinery and a transport vehicle into one vehicle that can travel to a waste material collection site. The work vehicle according to claim 1, wherein the bucket (12) is a shovel or a backhoe. The work vehicle according to claim 1, wherein the undercarriage (5) is a tire or a track.

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